Simunjan weather in April

In April, Simunjan sees average daytime highs of 32°C and overnight lows near 24°C, with 261 mm of rain across 27.5 wet days and about 12 hours of daylight. It is the 5th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 2% of the time in April, and the air most often feels miserable.

Daylight stretches from about 12 hours at the start of April to 12 hours by month's end. Set against the rest of the year, April is Simunjan's 5th-clearest and 11th-windiest month. For the whole year in context, see Simunjan's year-round climate.

Daytime high
32°
5th warmest
Overnight low
24°
11th coldest
Rainfall
261 mm
27.5 wet days
Daylight
12 hours
6:36 AM – 6:38 PM
Cloud cover
84%
5th clearest
Wind
5 km/h
11th windiest
Solar energy
5.27 kWh/m²
Travel score
2.3
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical April day in Simunjan reaches about 32°C in the afternoon and slips back to 24°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 33°C. Set against its neighbours, April runs about 1°C warmer than March and on par with May.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13124
23224
33224
43224
53224
63224
73224
83224
93224
103224
113224
123224
133224
143224
153224
163224
173224
183224
193224
203224
213224
223224
233224
243225
253225
263225
273225
283225
293225
303225

How April really feels in Simunjan

Once humidity and wind are folded in, April averages 30 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
30
29 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in April is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Simunjan weather by month

How April compares with the rest of the year at a glance. April is the 5th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 24°38528.711.92.7
Feb30° / 24°29224.4122.8
Mar31° / 24°26627.9122.5
Apr32° / 24°26127.5122.3
May32° / 25°23726.212.12.4
Jun32° / 24°19521.912.12.8
Jul32° / 24°17919.912.13.0
Aug32° / 24°20721.8122.8
Sep32° / 24°25524.7122.6
Oct31° / 24°30828.7122.4
Nov31° / 24°32929.111.92.3
Dec31° / 24°37629.311.92.5

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 9% of April, with mostly cloudy or overcast conditions the remaining 90%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1793
2793
3793
4793
5793
6892
7892
8991
91090
101090
111090
121090
131189
141189
151189
161189
171189
181189
191288
201288
211288
221288
231288
241288
251288
261288
271288
281288
291288
301288

Chance of precipitation in April

Any precipitation

Simunjan gets around 261 mm of rain over 27.5 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 92% and peaks near 94% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
194
294
394
493
593
692
792
891
991
1091
1190
1290
1390
1490
1590
1690
1790
1891
1991
2091
2191
2292
2392
2492
2592
2692
2792
2892
2992
3092

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

Most of April feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, April lands in the miserable band about 91% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
11783
21783
31684
41684
51585
61585
71486
81486
91387
101387
111288
121189
131090
141090
15991
16892
17793
18694
19694
20595
21595
22496
23397
24397
25397
26397
27298
28298
29298
30397

Wind in April

Winds average 5 km/h in April.

Across April, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 hours at the start of April to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over April. Sunrise moves from 6:41 AM to 6:33 AM, and sunset from 6:42 PM to 6:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:416:42
212.06:416:42
312.06:416:41
412.06:406:41
512.06:406:41
612.06:406:41
712.06:396:40
812.06:396:40
912.06:396:40
1012.06:386:40
1112.06:386:39
1212.06:386:39
1312.06:376:39
1412.06:376:39
1512.06:376:38
1612.06:366:38
1712.06:366:38
1812.06:366:38
1912.06:356:37
2012.06:356:37
2112.06:356:37
2212.06:356:37
2312.06:346:37
2412.06:346:37
2512.06:346:36
2612.06:346:36
2712.06:346:36
2812.06:336:36
2912.06:336:36
3012.06:336:36

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.27 kWh/m².

For context, solar energy here swings from a low near 4.38 kWh/m² to a high of 5.37 kWh/m² in August across the year — April's 5.27 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
Planning a trip in April

Is April a good time to visit Simunjan?

Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

2.3
Sightseeing
11th-best month of the year
3.6
Beach & pool
9th-best month of the year

April is a weaker month for outdoor sightseeing in Simunjan.

What to pack for Simunjan in April

From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In April, Simunjan sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.

light clothesrain gearsun protection

Sea temperature near Simunjan in April

The nearest coast averages about 30°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 30 km away) is warmest in June at about 30°C and coldest in February near 28°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct30Tropical
Nov30Tropical
Dec29Tropical

UV index in Simunjan in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 15 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Simunjan peaks around February 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 at about 11 (extreme).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 19UV 15Jul 13UV 11
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar15Extreme
Apr15Extreme
May13Extreme
Jun11Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct14Extreme
Nov12Extreme
Dec11Extreme

Air quality in Simunjan in April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.

Air quality in Simunjan is worst in September — around 32 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (January, 10 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1131 µg/m³Jan 1510 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar13Moderate
Apr13Moderate
May12Moderate
Jun13Moderate
Jul21Moderate
Aug29Moderate
Sep32Moderate
Oct18Moderate
Nov12Good
Dec11Good
Location & terrain

Where is Simunjan?

Simunjan sits at 1.4°N, 110.8°E, 7 m above sea level, in Malaysia. The nearest listed city is Serian, 32 km away.

Topography around Simunjan

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Simunjan.

Within 3 km, the terrain around Simunjan has only modest variations in elevation — a maximum elevation change of 23 m around an average of 7 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 391 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,408 m.

The land around Simunjan is covered by trees (66%) within 3 km, trees (85%) within 16 km, and trees (71%) and water (25%) within 80 km.

3 km
23 m
16 km
391 m
80 km
1,408 m
treesshrubsgrasslandartificial surfaceswatermangroves
April weather nearby: Serian 32 km · Siburan 39 km · Kuching 50 km · Tebedu 58 km · Bau 67 km · Saratok 76 km · Sri Aman 80 km · Betong 85 km

Malaysia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / G / M
230 V · 50 Hz
Prices
≈ 32% of US
price level, 2025
GDP per capita
$13,125
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
95%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
22.5
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 581
Religion
Muslim 64%Buddhist 19%Christian 9%Hindu 6%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Simunjan (1.3833°, 110.75°, elevation 7 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).